title: [Series, knowledge of emergency required for internist; hematemesis and melena].
authors.affiliation: Department of General Medicine and Emergency Care, Toho University, Japan.
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Urita
mesh_terms: D004630:Emergencies; D006396:Hematemesis / Q000175:diagnosis*; D006801:Humans; D007388:Internal Medicine; D008551:Melena / Q000175:diagnosis*